Today I installed a Livernois tune which I have done several times before. Today after I was done I received a message from my Ford app saying my TCM is corrupted. Now the transmission goes in gear hard and doesn’t shift aboven3rd gear. I tried disconnecting the battery for 1/2 hour and a hard reset. Nothing worked. I have a ln engine light on the dash. I cleared the codes but it’s still there. Any advice appreciated. Thank you in advance.
